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    Method and Apparatus of Directional Intra Prediction
    4.
    发明申请
    Method and Apparatus of Directional Intra Prediction 审中-公开

    公开(公告)号：US20190238836A1

    公开(公告)日：2019-08-01

    申请号：US16378781

    申请日：2019-04-09

    Applicant: HFI Innovation Inc.

    Inventor： Mei GUO ,  Xin ZHAO ,  Xun GUO ,  Shaw-Min LEI

    IPC: H04N19/105 ,  H04N19/157 ,  H04N19/182 ,  H04N19/593 ,  H04N19/14

    CPC classification number: H04N19/105 ,  H04N19/14 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/593

    Abstract: A method and apparatus for intra prediction for a current block using directional intra prediction based on neighboring pixels around the current block are disclosed. Embodiment according to the present invention derives the gradient for the current pixel from the neighboring reconstructed pixels along a prediction direction of directional intra prediction. The gradient derived is used to form the final intra prediction. In another embodiment of the present invention, the intra prediction for slant vertical and horizontal directions is derived based on the neighboring reconstructed pixels in a neighboring row adjacent to the top side of the current block and the neighboring reconstructed pixels in a neighboring column adjacent to the left side of the current block.

    Method and Apparatus for Compressing Coding Unit in High Efficiency Video Coding
    5.
    发明申请
    Method and Apparatus for Compressing Coding Unit in High Efficiency Video Coding 审中-公开
    用于在高效率视频编码中压缩编码单元的方法和装置

    公开(公告)号：US20170048540A1

    公开(公告)日：2017-02-16

    申请号：US15335129

    申请日：2016-10-26

    Applicant: HFI Innovation Inc.

    Inventor： Shan LIU ,  Yu-Wen HUANG ,  Shaw-Min LEI

    IPC: H04N19/51 ,  H04N19/91 ,  H04N19/13 ,  H04N19/176 ,  H04N19/96 ,  H04N19/44 ,  H04N19/119

    CPC classification number: H04N19/51 ,  H04N19/119 ,  H04N19/13 ,  H04N19/147 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/647 ,  H04N19/91 ,  H04N19/96

    Abstract: A method for decoding of a video bitstream including receiving coded data for a 2N×2N coding unit (CU) from the video bitstream, selecting one or more first codewords according to whether asymmetric motion partition is disabled or enabled, selecting one or more second codewords when a size of the 2N×2N CU is equal to a smallest CU size, wherein none of the second codewords corresponds to INTER N×N partition when N is 4, determining a CU structure for the 2N×2N CU from the video bitstream using the first codewords or the second codewords, and decoding the video bitstream using the CU structure. A corresponding method for encoding a 2N×2N coding unit of video data is also disclosed.

    Abstract translation: 一种用于解码视频比特流的方法，包括从视频比特流接收2N×2N编码单元（CU）的编码数据，根据是否禁用或启用非对称运动分区来选择一个或多个第一码字，选择一个或多个第二码字 当2N×2N CU的大小等于最小CU尺寸时，当N为4时，其中没有第二码字对应于INTER N×N分区，从视频位流确定2N×2N CU的CU结构，使用 第一码字或第二码字，并且使用CU结构解码视频比特流。 还公开了用于编码视频数据的2N×2N个编码单元的相应方法。

    METHOD AND APPARATUS FOR CODING OF SAMPLE ADAPTIVE OFFSET INFORMATION
    6.
    发明申请
    METHOD AND APPARATUS FOR CODING OF SAMPLE ADAPTIVE OFFSET INFORMATION 审中-公开
    用于编码样本自适应偏移信息的方法和装置

    公开(公告)号：US20170041638A1

    公开(公告)日：2017-02-09

    申请号：US15297764

    申请日：2016-10-19

    Applicant: HFI Innovation Inc.

    Inventor： Chih-Ming FU ,  Yu-Wen HUANG ,  Chih-Wei HSU ,  Shaw-Min LEI

    IPC: H04N19/70 ,  H04N19/91 ,  H04N19/44

    CPC classification number: H04N19/70 ,  H04N19/13 ,  H04N19/44 ,  H04N19/86 ,  H04N19/91

    Abstract: A method and apparatus for Sample Adaptive Offset (SAO) processing of video data in a video decoder are disclosed. In an embodiment, the method includes receiving a block of processed-reconstructed pixels associated with a picture from a media or a processor, wherein the block of processed-reconstructed pixels are decoded from a video bitstream; determining a SAO type index from the video bitstream, wherein the SAO type index is decoded according to truncated unary binarization, the SAO type index is decoded using CABAC (context-based adaptive binary arithmetic coding) with one context, or the SAO type index is decoded by CABAC using a context mode for a first bin associated with the SAO type index and using a bypass mode for any remaining bin associated with the SAO type index; and applying SAO processing to the block of processed-reconstructed pixels based on SAO information including the SAO type index.

    Abstract translation: 公开了一种视频解码器中的视频数据的采样自适应偏移（SAO）处理方法和装置。 在一个实施例中，该方法包括从媒体或处理器接收与图像相关联的经处理重构像素块，其中经视频重构像素块从视频比特流解码; 从视频比特流确定SAO类型索引，其中根据截断的一元二进制解码SAO类型索引，使用具有一个上下文的CABAC（基于上下文的自适应二进制算术编码）来解码SAO类型索引，或者SAO类型索引是 由CABAC使用与SAO类型索引相关联的第一bin的上下文模式来解码，并且对于与SAO类型索引相关联的任何剩余bin使用旁路模式; 以及基于包括所述SAO类型索引的SAO信息对所述经处理的重构像素块应用SAO处理。

    Methods of Palette Based Prediction for Non-444 Color Format in Video and Image Coding
    7.
    发明申请
    Methods of Palette Based Prediction for Non-444 Color Format in Video and Image Coding 审中-公开

    公开(公告)号：US20200007875A1

    公开(公告)日：2020-01-02

    申请号：US16567152

    申请日：2019-09-11

    Applicant: HFI Innovation Inc.

    Inventor： Shan LIU ,  Jing YE ,  Xiaozhong XU ,  Jungsun KIM ,  Wang-Lin LAI ,  Shaw-Min LEI

    IPC: H04N19/186 ,  H04N19/593 ,  H04N19/103 ,  H04N19/119

    Abstract: A method of video coding using palette coding mode for color video in a non-444 color format is disclosed. The non-444 video data can be converted to the 444 format so that the palette designed for the 444 format can be used for the non-444 video data. For the 4:2:0 color format, each chroma sample collocated with corresponding quad luma samples is padded with three chroma samples to form converted quad chroma samples. For the 4:2:0 color format, if a current pixel does not belong to the color palette, one or more escape values are signaled for the current pixel and the escape value associated with the chroma sample of the current pixel for each color component is not signaled for three of the quad chroma sample locations collocated with corresponding quad luma samples.

    APPARATUS AND METHOD OF SAMPLE ADAPTIVE OFFSET FOR LUMA AND CHROMA COMPONENTS
    8.
    发明申请
    APPARATUS AND METHOD OF SAMPLE ADAPTIVE OFFSET FOR LUMA AND CHROMA COMPONENTS 审中-公开

    公开(公告)号：US20190149846A1

    公开(公告)日：2019-05-16

    申请号：US16249063

    申请日：2019-01-16

    Applicant: HFI Innovation Inc.

    Inventor： Chih-Ming FU ,  Ching-Yeh CHEN ,  Chia-Yang TSAI ,  Yu-Wen HUANG ,  Shaw-Min LEI

    IPC: H04N19/82 ,  H04N19/176 ,  H04N19/132 ,  H04N19/157 ,  H04N19/186 ,  H04N19/70 ,  H04N19/117 ,  H04N19/96 ,  H04N19/196 ,  H04N19/463

    Abstract: A method and apparatus for processing reconstructed video using in-loop filter in a video coding system are disclosed. The method uses chroma in-loop filter indication to indicate whether chroma components are processed by in-loop filter when the luma in-loop filter indication indicates that in-loop filter processing is applied to the luma component. An additional flag may be used to indicate whether the in-loop filter processing is applied to an entire picture using same in-loop filter information or each block of the picture using individual in-loop filter information. Various embodiments according to the present invention to increase efficiency are disclosed, wherein various aspects of in-loop filter information are taken into consideration for efficient coding such as the property of quadtree-based partition, boundary conditions of a block, in-loop filter information sharing between luma and chroma components, indexing to a set of in-loop filter information, and prediction of in-loop filter information.

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